Tone-post for violins.



H. EDWARDS.

TONE POST FOR VIOLINS. A-PPLICATION FILED sPT.|1. 1915.

1, 180,1 1 5 Patented Apr. 18, 1916.

I Edwards wfl'nzooeo v HARRISON EDWARDS, OF DOWNSVILLE, NEW YORK.

TONE-POST FOR VIOLINS.

Specification of Letters Patent.

Patented Apr. 18, 1916.

Application filed September 17, 1915. Serial No. 51,222.

To all whom it may concern Be it known that I, HARRISON EDWARDS, a citizen of the United States, residing at Downsville, in the county of Delaware, State of New York, have invented certain new and useful Improvements in Tone-Posts for Violins; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a tone post for violins.

An object of the invention resides in the provisionof a device which may be placed within a violin and which will make the tone mellow, lingering and otherwise pleasing to the car.

A further object of the invention resides in so constructing the device that it may be placed in violins of various construction where the distances between the back and front of the violins are different.

With these and other objects in view, such as will appear as my description progresses, my invention comprises the combination and arrangement of parts as set forth in and falling within the scope of the appended claims.

In the drawing: Figure 1 is a perspective view of a device constructed in accordance with my invention showing the same in place in a violin, only a portion of the same being shown however; Fig. 2 is a longitudinal sectional view; Fig. 3 is a horizontal sectional View on the line 33 of Fig. 2, and Fig. 4. is an exploded View.

Referring to the drawing by reference characters wherein like parts are indicated by like characters throughout the several views: In the embodiment of the invention shown in the drawing, I have illustrated a body portion 1 which is made of glass. This body portion is of cylindrical formation and is provided with a longitudinally extending chamber 2. Mounted on the body portion is a rubber member 3 which is provided with a shank 4, which shank extends into the chamber 2 and is held therein by a plurality of studs 5 which are formed on the body portion 1 adjacent the upper end of the chamber 2. A glass cap 6 is mounted on the rubber member 3 and is provided with a shank 7 which extends through the said rubber member and projects beyond the 'lower-endof the shank thereof. This shank 7 is maintained in the rubber member 3 by means of a plurality of studs 8 which are formed upon the shank as clearly seen in Fig. 2 of the drawing. Interposed between the cap 6 and the rubber member 3 are a plurality of rubber washers 9 the number of which may be either increased or de creased as the necessity arises. The chamber 2 in the body portion 1 is partially filled with a liquid which is made up, preferably, of ninety per cent. sweet oil and ten per cent. turpentine. It will be noted that the end of the glass shank 7 extends into the said liquid and further that there is a space- 11 between the lower end of the shank at of the member 3 and the top of the liquid. The shank 7 is provided with a longitudinally extending bore 12 which opens at the lower end of the shank but which is normally closed by the liquid. By an inspection of Fig. 1 of the drawing, it will be seen that the device is placed in a violin between the front and back thereof and below one end of the bridge. The rubber washers 9 which form, in fact, a portion of the member 3 are provided so that the effective length of the device may be varied. This is necessary because of the fact that the distance between the front and back of various makes of violins is different and the device must be wedged between the said front and back, for it is in this manner that it is held in place. With this construction, it will be seen that the two glass portions of the device are separated from each other by rubber portions and that an air space is formed between the liquid and the lower end of the rubber member and a second air space is formed in the shank of the can. It has been found by actual experience that this particular arrangement of parts, made of the particular material will so affect the tone of a violin that it will be rendered entire-1v pleasing to the ear.

While I have illustrated and described a particular embodiment of my invention, it has merely been for the sake of convenience and I do not wish to be limited to that particular embodiment as it is obvious that numerous changes may be made in the details of construction without departing from the spirit of the invention or exceeding the scope of the appended claims.

WVhat I claim is 1. In a tone post for violins, the combination with a pair of non-elastic members adapted to contact with the front and back of the violin, of an elastic member interposed between said non-elastic members.

2. In a tone post for violins, the combination with a body portion having a longitudinally extending chamber, of a cap having a shank extending into said body portion, an elastic member interposed between said body portion and cap and a liquid in the chamber of said body portion into which the lower end of the shank extends.

3. In a tone post for violins, the combination with a glass body portion, having a longitudinally extending chamber, of a glass cap having an integral hollow shank extendinginto said chamber, a rubber member interposed between the said cap and body portion and a liquid in the chamber into which the lower end of the shank extends.

4. In a tone post for violins, the combination with a body portion having a longitudinally extending chamber, of a cap having a shank extending into the chamber in said body portion and a liquid in the chamher.

5. In a tone post for violins, the combination with a body portion having a longitudinally extending chamber therein, of a cap having a hollow shank extending into said chamber, a rubber member interposed between the cap and body portion and having a shank extending into the chamber of the body portion, a liquid in the chamber, the shank of the rubber member and the liquid being so arranged that an air space is left between them.

6. In a tone post for violins, the combination with a body portion having a longitudinally extending chamber therein, of a cap having a hollow shank extending into the chamber, means for maintaining the cap and body portion out of contact with each other and a liquid in the chamber into which said shank extends.

7. In a tone post for violins, the combination with a body portion having a chamber therein, of a cap, means for supporting the cap on the body portion in spaced rela- Copies of this patent may be obtained for five cents each, by addressing the Washington, D. 0.

tion thereto, a liquid in the chamber, the said body portion having an air space therein and a shank having an air space therein out of communication with the first mentioned air space. ha

8. In a tone post for violins, the com nation with a body portion having a chamber therein, of a liquid consisting of ninety per cent. sweet oil and ten per cent. turpentine in said chamber, a cap having a shank extending into said liquid and means for supporting the cap on the body portion in spaced relation thereto.

9. In a tone post for violins, the combination with a body portion having a chamber therein, of a rubber member mounted on said body portion and having a shank extending into said chamber, a cap mounted on the rubber member and having a hollow shank extending through the rubber member and a liquid in the chamber in spaced relation to the lower end of the shank on the rubber member in which the lower end of the shank on the cap is submerged,

10. In a tone post for violins, the combination with a glass body portion having a chamber therein, of a glass cap having an integral hollow shank extending into said chamber, a fibrous member interposed between the cap and body portion and a liquid consisting of ninety per cent. sweet 011 and ten per cent. turpentine in said chamber, there being an air space between the said liquid and the fibrous member.

11. In a tone post for violins, the combination with a glass body portion having a chamber therein, of a glass cap having an integral hollow shank extending into said chamber, a fibrous member interposed between the cap and body portion and a liquid consisting of sweet oil and turpentine in said chamber.

In testimony whereof, I aflix my signature, in the presence of two Witnesses.

HARRISON EDWARDS.

Witnesses:

EDWARD E. CONLON, GEORGE J. MERRITT.

Commissioner 01 Patent, 

